Combined blackboard and desk



No Model.)

L. W. YAGGY. COMBINED BLAGKBOARD AND DESK.

WHFM. I v

Patented Mar. 15. 1898.

NITED STATES PATENT OFFICE.

LEVI W. YA GGY, OF LAKE FOREST, ILLINOIS.

COMBINED BLACKBOARD AND DESK.

SPECIFICATION forming part of Letters Patent No. 600,629, dated March15, 1898..

Application filed May 21, 189 7- Serial No- 637,499. (No model.)

To all whom, it may concern.-

Be it known that I, LEVI W. YAGGY, a citizen of the United States,residing at Lake Forest, in the county of Lake and State of Illinois,have invented a certain new and useful Improvement in a CombinedBlackboard and Desk, which is fully set forth in the followingspecification, reference being had to the accompanying drawings, inwhich- Figure 1 is a side elevation of the combined blackboard and deskattached to the wall and with the blackboard locked in position for use.Fig. 2 is afront elevation with the board in the same position. Fig. 3is afront elevation with the board in position for use as a desk. Fig.4. is a side elevation with the board in the same position as Fig 3 andother possible positions of the board shown in dotted lines. Fig. 5 isaperspective view of the board detached from the casing, so as to becapable of use as a lap-board, tray, &c.

My invention relates to a new and useful combined blackboard and deskwhich may be hung against the wall and is constructed so as to fold socompactly as to occupy but very little space. casing and the board. withone colored surface that is suitable for the use of crayon, and theother is an ordinary wood surface. This board is so attached to thecasing as. to be capable of covering it completely, with its ordinarysurface outside, so as to act as a cover. It is further capable ofadjustment so that its crayon-surface will be outside and in positionfor use as a blackboard. It is adjustable so that the board shall beplaced horizontally and at right angles to the casing and secured so asto oper ate as a desk with the wood surface of the board uppermost.

My invention consists of further details of construction that will beexplained more fully in the specification and set out in the claims.

My improved blackboard and desk may be attached to a wall A by means ofhooks B, secured to said wall, which hooks cooperate with the rings 0,secured to the sides D of the casing of the board, all as clearly shownin Figs. 1 and 3. This casing consists of the back piece D, having thevertical side pieces D fastened thereto and connected by the Itsprincipal parts are the The board is furnished;

horizontal cross-pieces D D and D all constructed and operating to makea firm and compact frame. In the space between the horizontalcross-pieces D and D I mount a copy-sheet M, which contains any desiredcopies for drawing purposes. This copy-sheet is mounted upon two rollerswhich are journaled in the side piece D and are manipulated in thecustomary manner by the knobs N, with which they terminate to bring anydesired portion of the copy-sheet into position for inspection. Betweenthe horizontal cross-pieces D and D are arranged two vertical pieces Dand D which divide this space into three sections, as clearly shown inFig. 1. The left-hand section F contains a coiled spring H,which may beconveniently mounted on the bail G, to be subsequently described, andserves as a holder for pens, crayons, and other similar articles. Asmall piece of material E placed upon the horizontal crosspiece Dbetween the left-hand side piece D and the vertical piece D serves toretain any pieces of crayon or other material in place that may havebeen placed in the bottom of this compartment. The central section Fbetween the vertical pieces D and D is furnished with two thin sheets ofmaterial E and E, which serve as the sides of pockets into which thiscentral space is divided and which are intended to hold stationery andsimilar articles. The right-hand section is divided by thehorizontally-disposed cross-piece D", which is placed between thevertical piece D and the right-hand piece D, into the upper section Fand the lower section F The compartment F is conveniently utilized tohold an eraser for the blackboard, while the section F is divided intopockets by the pieces E and E in the same manner as the central sectionF is divided by the pieces E and E. The pockets in the section F may beutilized to hold envelops and similar articles. In connection with thiscasing and its copy-sheet and compartments I employ a board J, (bestshown in the perspectiveof Fig. 5,) and which consists of a thin boardwith the grooved side pieces J, which are secured thereto. This board Jis secured to the casing .by the bail G, which, as will be seen fromFig. 3, passes through theend "pieces D and the vertical pieces D and DThe downwardly-turned portions of this bail terminate in horizontalhooks, which take into the holes G, located in the side pieces J of theboard J for this purpose. The bail G is made of a strong wire, and theconnection thus formed between the casing and the board'J is strongenough to endure any strain that maybe placed upon it, while, ifdesired, the board may be detached from the casing by springing apartthe ends of the bail and thus withdrawing them from the holes G. Whenthus detached, the board J makes a very convenient tray or lapboard. Thebail G also serves to maintain the pivotal aXis of the board J inparallelism with the casing and prevents any tendency of the parts tocramp and get out of position during the movement of the board to itsvarious adjustments, which cramping would occur if I provided separatelinks in place of the continuous bail. One side of said board J iscoated with some material which renders it suitable for the use ofcrayon, while the other side of the board has an ordinary hardwoodfinish. As will be seen from the drawings, this board is capable oftaking a variety of positions relative to the casing. When it is desiredto use said board as a blackboard, it is swung in the position shown inFig. 1, where the crayon-surface is outermost, and it is caught and heldfirmly in position by the spring-catches L on the end pieces D,cooperating with the sockets K, secured to the sides J upon' theplain-surface side of the board J. I11 this position it will be seenthat the copy-sheet M is uncovered, so as to beaccessible forinspection, while the blackboard is firmly secured in position for usedirectly beneath said copy-sheet. WVhen it is desired to use said boardas a desk, it is swung into the position shown in Figs. 3 and 4, inwhich V the end of the board takes under the shoulders K formed in thelower ends of the side pieces D to securely hold the board in ahorizontal position with the plain surface uppermost, so that it can beused for writing or any other purpose that may be desired.

When the apparatus is not in use, the board v J is swung into theposition shown in Fig. 4 in dotted lines, in which the plain surface ofthe board is outermost and covers completely not only the compartmentsF, F, and F, but

also the copy-sheet M. The board is locked in this position by means ofthe same catches L cooperating with the sockets K, similar to thesockets K, but located upon the opposite side of the board and somewhatnearer to the center thereof. When the casing is suspended against thewall, the board can be arranged at almost any angle desired, asindicated by the dotted lines in Fig. 4, with the crayon or plain sideuppermost and with one end held upon the knee and the other end restingagainst the casing. Instead of employing its specific form of sockets Kand K shown I may convenientlyform them by cutting grooves in the sidepieces J, as shown at K in Fig. 3, on

both sides of the board J and make the springcatch L to cooperate withthese grooves K thus dispensing with any separate sockets.

It will be seen that I have constructed a simple, compact, and extremelyuseful combined blackboard and desk that is capable of a variety ofuses.

My invention is capable of some modifications, and I do not desire to belimited except as may be necessitated by the state of the art and theterms of the following claims.

I claim 1. In an article of the class described, the combination of thecasing, with the board,

and the bailhaving its body portion rotatably mounted on the casing, andits ends pivotal] y connected to the board, whereby the parallelism ofthe pivotal axis of the board and of the casing Will be maintainedduring the movement of the board relative to the casing.

2. In an article of the class described, the combination of the casing,with the board, the bail having its body portion rotatably mounted onthe casing, and its ends pivotally connected to the board, whereby theparal lelism of the pivotal aXis of the board and of the casing will bemaintained during the movement of the board relative to the casing, andcatches whereby said board may be held against said casing with eitherside outermost, as may be desired.

3. The combination of the casing,with the board, the bail connectingsaid casing and board, and the shoulders upon said casing to hold theboard in position when it is arranged at right angles to said casing,the bail operating to maintain the parallelism of the pivotal axisof theboard and the casing in all positions of said board.

4. The combination of the casing, with the board, the bail connectingsaid casing and board whereby they may be adjusted in a plurality ofpositions relative to each other, the catches for holding said boardagainst said casing with either side of said board outermost, andshoulders on said casing whereby the board may be retained at rightangles thereto, the bail operating to maintain the parallelism of thepivotal axis of the board and the casing in all positions of said board.

5. The combinationof the casing, with the board, the bail connectingsaid casing and said board so as to permit of a plurality of adjustments relative to each other, and a catch on said casing cooperatingwith a plurality of sockets on said board whereby the board may be heldin a plurality of positions relative to the casing, the bail operatingto maintain the parallelism of the pivotal axis of the board and thecasing in all positions of said board.

6. The combination of the casing, with the board, and a bail detachablyconnected. to said board and whereby the casing and board may bearranged in a plurality of positions relative to each other, the bailoperating to maintain the parallelism of the pivotal axis of the boardand the 'casing in all positions of said board.

- 7. The combination of the casing, with the bail passing therethrough,the wire I-I surrounding said bail, substantially as shown anddescribed.

8. The combination of the casing, with the board, links connected tosaid casing and to the sides of the board at some distance from thecenter thereof, and catches in said casing cooperating with said boardto hold it in different positions upon the casing depending upon whichside of the board is outermost.

9. In an article of the class described, the

LEVI W. YAGGY.

Witnesses:

F. E. BROM, A. A. MURRAY.

